diff --git a/js/src/common/Application.js b/js/src/common/Application.js
index 4a7799110..d5a955664 100644
--- a/js/src/common/Application.js
+++ b/js/src/common/Application.js
@@ -1,9 +1,7 @@
 import ItemList from './utils/ItemList';
 import Alert from './components/Alert';
-import Button from './components/Button';
 import ModalManager from './components/ModalManager';
 import AlertManager from './components/AlertManager';
-import RequestErrorModal from './components/RequestErrorModal';
 import Translator from './Translator';
 import Store from './Store';
 import Session from './Session';
@@ -333,10 +331,7 @@ export default class Application {
 
       error.alert = new Alert({
         type: 'error',
-        children,
-        controls: app.forum.attribute('debug') ? [
-          <Button className="Button Button--link" onclick={this.showDebug.bind(this, error)}>Debug</Button>
-        ] : undefined
+        children
       });
 
       try {
@@ -351,16 +346,6 @@ export default class Application {
     return deferred.promise;
   }
 
-  /**
-   * @param {RequestError} error
-   * @private
-   */
-  showDebug(error) {
-    this.alerts.dismiss(this.requestErrorAlert);
-
-    this.modal.show(new RequestErrorModal({error}));
-  }
-
   /**
    * Construct a URL to the route with the given name.
    *
diff --git a/js/src/common/compat.js b/js/src/common/compat.js
index 442c1f369..f5ed2d2db 100644
--- a/js/src/common/compat.js
+++ b/js/src/common/compat.js
@@ -37,7 +37,6 @@ import Placeholder from './components/Placeholder';
 import Separator from './components/Separator';
 import Dropdown from './components/Dropdown';
 import SplitDropdown from './components/SplitDropdown';
-import RequestErrorModal from './components/RequestErrorModal';
 import FieldSet from './components/FieldSet';
 import Select from './components/Select';
 import Navigation from './components/Navigation';
@@ -101,7 +100,6 @@ export default {
   'components/Separator': Separator,
   'components/Dropdown': Dropdown,
   'components/SplitDropdown': SplitDropdown,
-  'components/RequestErrorModal': RequestErrorModal,
   'components/FieldSet': FieldSet,
   'components/Select': Select,
   'components/Navigation': Navigation,
diff --git a/js/src/common/components/RequestErrorModal.js b/js/src/common/components/RequestErrorModal.js
deleted file mode 100644
index bc0ec7650..000000000
--- a/js/src/common/components/RequestErrorModal.js
+++ /dev/null
@@ -1,30 +0,0 @@
-import Modal from './Modal';
-
-export default class RequestErrorModal extends Modal {
-  className() {
-    return 'RequestErrorModal Modal--large';
-  }
-
-  title() {
-    return this.props.error.xhr
-      ? this.props.error.xhr.status+' '+this.props.error.xhr.statusText
-      : '';
-  }
-
-  content() {
-    let responseText;
-
-    try {
-      responseText = JSON.stringify(JSON.parse(this.props.error.responseText), null, 2);
-    } catch (e) {
-      responseText = this.props.error.responseText;
-    }
-
-    return <div className="Modal-body">
-      <pre>
-        {this.props.error.options.method} {this.props.error.options.url}<br/><br/>
-        {responseText}
-      </pre>
-    </div>;
-  }
-}